I’m completely besotted with a guy I met on a holiday trip over the summer, from when I first saw him and before I knew he’d been with a guy (which he told us once). Sadly chances to meetup since have been far and few between, until this weekend.
Sadly he didn’t come to my birthday party like I hoped he might but there was a holiday reunion dinner and we caught up massively then, he knew about my birthday and asked how it went etc, we spoke more that night than we did on the whole holiday, at one point he had to go to the bathroom and as he got up he said he’d be right back and squeezed my shoulders.
By some luck and chance I ended up walking to the station and getting the train some of the way just with him, naturally I was asking him lots of questions about himself but when it turned to what I do other than my degree I struggled to think of things, dismissing myself as “not very interesting” to which he said “i’m sure that’s not true”. When I had to change trains we shook hands and I said we should keep in touch in a sincere way, so he knew I wasn’t just saying it, and he agreed.
The thing is he had this wry little smile a lot when talking to me, and i don’t know what it means, whether I amuse him as I don’t have much confidence and am worried he thinks im a joke..he’s tall with wavy brown hair and blue eyes and very handsome fashionable and works in advertisising, whereas I am pretty average and a student.
Is there any more I should have done? Getting his number didn’t feel quite right, but I feel (or hope) that we really bonded that night, and there’s a fancy dress party next month..what should I do then??

It seems to me that you two hit it off. It’s a little hard to know if it’s only friendship or something more, though. Does he know that you’re into guys too? If he does, that would make it easier. It’s not a big deal though, because the only way to find out if he is interested in you in that way is to get to know him better. And you already have a great occasion to do that! If you have the guts, you could ask him to come to the fancy dress party
If you know you have some specific interests in common, say superheroes for example, you could even come up with a theme for the two of you. That way you could spend some time planning, and it will sort of tie you together at the party.